Before you start This post is a tutorial on how to work with “RIC” image files to create a simple game using the NXT display. For an example of what the finished game will look like and an introduction to RIC files, please see: Create your own games with “RIC”...

In this activity, a group of students each build a robot. Each robot is assigned a number. It will then have to tag other robots with the number by using mail. Five tags and the robot takes on that robot’s number. The winner is the robot that has given its...